Rana (3-15) netted Tasmania's second hat-trick in as many matches to fire the Redbacks out for 131.

But an inspired opening burst by Shaun Tait (3-27) and tricky spells from Aaron O'Brien (3-15) and Daniel Christian (2-13) held the Tigers to a miserable 9-108 on a perfectly presentable batting surface.

SA's 23-run success was arguably their most significant since lifting the Sheffield Shield in 1996, handing them a home final and the chance to match wits with the world's best on the subcontinent later this year, a tournament that offers rich financial rewards to all participants.

The Redbacks' best hope of defending 131 had rested with the slinging action of Tait and the first two balls of the innings saw him bounce out Tim Paine and Michael Dighton as a parochial crowd of 14,440 roared in support.

Tait's first spell read 2-0-3-2 and change bowler Christian pushed the Tigers further into the mire by persuading Rhett Lockyear to slap a full toss to mid on.

Visiting captain George Bailey was clearly inconvenienced by the infected elbow that had caused him to miss his side's last match against Queensland and his battling 16 from 28 balls ended when he swung another full toss, this time from O'Brien, to deep midwicket.

Wickets continued to fall and the failure of the chase left Rana feeling bittersweet after his hat-trick had hastened the collapse of SA's batting.

The game after Brett Geeves claimed three wickets in three balls against Queensland at the Gabba, Rana (3-15) had Kieron Pollard caught at long on before finding a pair of perfectly-pitched induckers to account for Cameron Borgas and Christian.

Mark Cosgrove was run out next ball to mean SA had give up four from four and in all they lost a comical 6-4 to conclude the innings.

SA had made a fast start (62 from the first six overs) but faded with the dismissal of captain Graham Manou (33) and opening partner Daniel Harris.

Left-armer James Faulkner (2-11) supported Rana well but the Tigers batsmen failed badly in the run chase.